{
  "patent_number": "US 3055113",
  "country": "US",
  "title": "Early Device for Tracking Objects with a Pen",
  "original_title": "Tracing device",
  "summary": "This 1962 patent describes an early system for tracing the path of an object using a pen-like stylus that records its movement on a surface.",
  "what_it_does": "The patent describes a tracing device that allows a user to track the movement of an object. A pen or stylus is attached to the object, and as the object moves, the pen draws its path on a surface. The device includes a mechanism to ensure the pen maintains contact with the surface and records the movement accurately. This could be used to map out the trajectory of a moving item.",
  "what_it_does_not_cover": [
    "Digital or electronic tracing systems",
    "Devices that do not physically mark a surface",
    "Automated tracking without a physical stylus",
    "Systems for tracking airborne or underwater objects",
    "Methods of data storage or analysis of traced paths"
  ],
  "filed": "1959-07-23",
  "granted": "1962-09-25",
  "expires": "1979-09-25",
  "status": "expired",
  "holder": "Individual",
  "holder_url": "https://patentbrief.org/company/individual",
  "inventors": [
    {
      "name": "Grandjean Arthur",
      "url": "https://patentbrief.org/inventor/grandjean-arthur"
    }
  ],
  "times_cited": 31,
  "tags": [
    "mechanical",
    "consumer_electronics"
  ],
  "abstract": null,
  "url": "https://patentbrief.org/patent/us/3055113/etch-a-sketch",
  "markdown_url": "https://patentbrief.org/patent/us/3055113/etch-a-sketch/md",
  "google_patents_url": "https://patents.google.com/patent/US3055113",
  "relatedPatents": [
    {
      "patentNumber": "2713176",
      "countryCode": "US",
      "title": "How a Simple Felt-Tip Marker Works",
      "url": "https://patentbrief.org/patent/us/2713176/magic-marker-permanent-marker-rosenthal"
    },
    {
      "patentNumber": "3541541",
      "countryCode": "US",
      "title": "How Douglas Engelbart Invented the Computer Mouse",
      "url": "https://patentbrief.org/patent/us/3541541/computer-mouse-input-device"
    },
    {
      "patentNumber": "90646",
      "countryCode": "US",
      "title": "Edison's First Patent: An Electric Vote Recorder",
      "url": "https://patentbrief.org/patent/us/90646/edison-first-patent-vote-recorder"
    },
    {
      "patentNumber": "3503060",
      "countryCode": "US",
      "title": "How Early Hard Disk Drives Accessed Data Quickly",
      "url": "https://patentbrief.org/patent/us/3503060/hard-disk-drive"
    },
    {
      "patentNumber": "3867571",
      "countryCode": "US",
      "title": "How Laser Printers Use Rotating Mirrors to Write Information",
      "url": "https://patentbrief.org/patent/us/3867571/laser-printer-starkweather"
    }
  ]
}